Rock-pulverizing machine.



A. G. CAMPBELL. ROCK PULVERIZING MACHINE.

- APPLICATION FILED 0M. 20, 1910.

Patented Apr. 25, 191 1.

2 SHEETS-SHEET 14 A. G. CAMPBELL. ROCK PULVBRIZING' MACHINE. APPLIOATION FILED OCT. 20, 1910.

990,633. Patented Apr. 25, 1911.

2 snnms-smm 2.

mmesses I Inventor 40 is a journal box suitably formed in halves and secured centrally on the base 1. 41 is an arrangement of ball bearings atthe bottom of said journal box. 42 1s a bushing in said journal box 40. v

43 is a journal box rigid with the underside of the partition and suitably formed in halves having its journal orifice in alinement with the orifice in the journal box 40.

44 is a bushing in the journal box 43.

45 is a vertical shaft journaled in the boxes and 43 and resting on the ball bearings 41, said shaft having a tapered upper end 41 terminating in the threaded portion 46. 47 is the rotor base having the-inner wall of its hub 48 tapered correspondingly to the taper 41 and mounted on said shaft 45, the thread 46 of said shaft extending above the upper surface of said rotor base 47. 49 1s a cone center to the rotor having a central threaded recess in its under side and screwing onsaid thread 46 of the shaft and' thus firmly locking said rotor base to said shaft and at the same time presenting a deflectingsurface on the upper side'for material received through the feed pipe 33.

50 are arc-shaped. blades pro ecting upwardly. from the rotor base 41 and extending from the lower terminus of the cone t5 the edge of said base, said blades being arranged ad acent one to the other and adapted to throw, by centrifugalforce, the .rock particles against the serrated lining 15. 51 is the cone.

1 wardly from the under side of the rotor a plateihaving a central opening and covering the blades 50, and forming with said blades. and said rotor base'the buckets 52 adapted to receive the rock particles from 53 are blades similarly formed to, the

.blades 50 and projecting upwardly from the plate 51 between the central opening in said plate and the edge thereof and adapted to urther disintegrate the rock falling back from theserrated lining and again throw it against said lining by centrifugal force. 54 are radial blades projecting downbase 41 and extending from near thehub 42 adjacent to the outer edge of said rotor and adjacent to the annular flange 8, saidradia-l blades turning with said rotor and formin 'a fan to suck theair upwardly throughrthe air hole 7 and thus create an upward draft.

55 is a platform having a central shaft orifice thereth'rough'and a downwardly extending flange at the edge thereof rigidly secured to the casing 3 intermediate of the" I height thereof toward the lower end.

56 is a motor centrally supportd on the platform 55 and having its armature secured to the shaft 45vwhich extends through said e motor.

In Fig. 3, the rotor isjformeda little dif-- ferently from that shown in Fig. 1, the

buckets being shown in three tiers, one

said center it is deflected to the buckets where it is whirled around and thrown violently against the serrated lining. The pieces of rock are tossed backward and forward bctweenthe rotor and the lining and the curved wings 20 until thoroughly pulverized, the dust ascending through the discharge opening 39 and from there descending to and through the discharge pipes 26.

The fineness of the particles is regulated by the raising and lowering-of the deflector 36 as the lowering of said deflector will materially reduce the size of the opening 39 and the raising will materially increase the size of said opening and coincidently with the regulation of the said deflector, the damper for the air openings 31 must be 'adjusted as the supply of air is sucked into the chamber 11 by the rapid rotation of the rotor. The air drawn in must corres 0nd to the quantity -of air necessary for t e discharge. g

It will be noticed that the fan forming the under part of the rotor creates a vacuum drawing up air through. the air hole in the partition, thus creating a constant upward draft which keeps that portion of the machine cleanand further assists in the discharge. i

It must be understood that without departing from the spirit of the invention, modifications may be made inthe constructlon of the rotor, such as the formation of the blades and the arran ement of the blades and the plate covering t em to form buckets and the blades surmounting the late formmg the top of the buckets, so ong as the rotor top is arranged to discharge the rock particles violently against an abrading surface. It must also be set forth herein .that

v the serrated lining may be arranged in many Ways, that is as regards the'formation of the surface, as the essential feature is to have a roughened face to said lining for abrasive purposes.

A feed arrangement of the machine will, of. course, bemade to suit the interior construction and is shown herein in the most convenient and preferable form.

The particular form of drive for .this

machine, that is the direct electrical drive,

is'by all means the most preferable and the dri arrangement in this machine is par.- ticular y emphasized herein, but it must be understood that other forms and other means of driving'the vertical shaft may be used.

Generally modifications may be made in the l construction of the parts described, some parts omitted and new parts added, so lon as the machine as made, or the parts thereo come within the scope of the claims for novelty, following this description.

What I claim as my invention is:

1. In a rock pulverizing machine, the combination with the casing. having ingress and egress openings, of a rotor in horizontal arrangement Within saidcasing having aconeshaped center and arc-shaped blades surrounding said center and projecting downwardly therefrom to the edge of said rotor in radial curves and forming buckets, and a vertical shaft suitably journale'd and carrying said rotor.

2. In a rock pulverizing machine, the combination with the casing having ingress and egress openings, of a rotor having blades projecting upwardly from its upper surface adapted to contact with the rock received into said casing and radial'fan blades extending outwardly from its under side, a partition having a central journal orifice and an air hole therethrough and inclosing said rotor in the upper portion of said casing and a vertical shaft suitably journaled in said casing and extending upwardly throughsaid journal orifice and carrying said rotor.

3. In a rock pulverizing machine, the combination with the casing having ingress and egress openings, of a rotor having a hub extending downwardly from its under side, a cone center piece having a central threaded recess in its under side, arc-shaped blades extending outwardly from said center piece, radial blades extending outwardly from said hub, a-partition rigidly secured to said casing intermediate of its height having a central journal orifice receiving said rotor hub and an air hole, a vertical shaft suitably journaled and extending into said rotor hub and having a threaded upper end screwing into said cone center recess, and a feed chute extending from said ingress opening and terminating over said rotor.

a. In a device of the class described, in combination, a casing having ingress and egress openings and upper and lower compartments, a removable serrated lining on the wall of the upper compartment converging slightly toward its lower end forming an abrading and deflecting surface directed to the lower center of said upper compartment, a rotor turning in the lower center of said upper compartment and having blades and extending adjacent to the lower end of said lining, and a vertical shaft carrying said rotor and suitably driven.

5. In a device of the class described, in combination, a casing having a dome-shaped inner cover and a hood surmountingsaid dome and an ingress opening through said hood to said casing and a partition rigidly secured to said casing intermediate of its height having a journal orifice in the cencombination, a cylindrical casing having-a dome-shaped inner cover and an inverted pot-shaped hood closing in said casing and cover, said hood having air and rock ingress openings therethrough, a pipe extending from said ingress opening and terminating cen-.

trally in the upper portion of said casing,

discharge pipes extending from the lower end of said hood, a partition rigidly secured to said casing intermediate of the height thereof, a rotor adapted to revolve within the upper compartment of said casing having blades extending upwardly therefrom, and means for creating a forced upward draft in said upper compartment.

7. In a device of the class described, in combination, a base having an annular upward flange-adjacent to the edge'thei'eof, a cylindrical casing set on said base within said flange and rigidly secured thereto, an

inner dome cover portion, a hood supported from said cylindrical casing having ingress openings, suitable discharge pipes, a partition having air holes therethrough, and a central journal orifice and dividing the complete casing into two compartments, a rotor having blades mounted thereon and turning within the upper compartment, a driven vertical shaft carrying said rotor, a removable serrated lining surrounding the upper portion of the inner wall of said cylindrical casing and converging'toward said rotor, and a feed pipe extending from said ingress opening.

8. In a device of the class described, in combination, a base, a cylindrical casing mounted on said base, an inner dome-shaped cover resting on said cylindrical casing and firmly secured thereto having a central opening, a partition rigidly secured to said casing intermediate of the height thereof having a central journal orifice, and air holes and an annular flange preferably extending from the upper side adjacent to the edge thereof, a rotor having a hub extending downwardly from the under side there- 7 of and turning in said journal orifice, said hub having a tapered inner wall, arc-shaped blades mounted on said rotor, a journal box secured to the under side of said partition, a journal box mounted on said base, ball bearings at the bottom of said lower ournal box, a Vertical shaIt resting on said ball bearings and turning on said journal boxes having-a tapered, upper end introduced into said hub, and a drlven pulley mounted on said sha 9. In a device of the class described, a

I base, a cylindrical casing. mounted on said from the upper portion of the inner wall ofsaid cylindrical casing, a ring shelf having flanges secured to said casing and hood re spectively and discharge holes therethrough, and pipes secured to said shelf and leading from said-discharge holes. F

10, In a device of the class" described, .in

combination, a casing having ingress and -egres s openings and a dome-shaped inner covering, said'covering having a flange at its outer lower end meeting the top. of thecasing and forming a supporting shoulder, a

horizontal partition dividing said casing- 7 into compartments and having an annular flange backing flange toward the edge thereof anda re- .inovable lining having an abrading surface extending from under said shoulder of said cover to said annular flange and having a said "annular flange, and means 'for driving rock particles against said abrading surface. I a

11. Ina rock .pulverizing machine, the combination with the casing and a'domeshaped inner cover having a central opening therethrough, of an inverted bell-shaped deflector introduced in said central opening,

a' hood having a central feed opening and covering 1n sald lnner dome COVGIIIIU casing, adjustable bolts suspending said defeed pipe extending centrally through 22nd deflector from said feedopening into said-3 .fiector from said hood, and means for. pulverizing the rock within said casin 12. In a rock pulverizing mach ne, the combination with a casing having an inner cover theretoand a central opening in said.

inner cover, of a hood having a feed openingtherethrough, closing in said inner cover and surrounding discharge openings from said casing, a feed pipe extending inwardly into said! casing through said inner cover opening from said feed opening in the hood and forming with said inner-covering an annular discharge opening from said casing,

means for regulatmg the size of said discharge opening, and means for pulverizing the rock within said casin 13. In a rock pulverizing machine, the

combination with a casing and an lnner dome covering the said casing and having a central opening therethrough, of an inverted pot-shaped hood having a tapered side wall, a central feed opening therethrough and a plurality of air vents encircling said feed opening, a rim shelf having flanges extending. downwar y therefrom, secured to saidcasing and to the lower end of saidhood, and discharge holes at intervals therethrough, a feed pipe extending downwardly through said inner cover opening into the casing forming with inner covering an annular discharge opening directly from said casin a damper of ring shape havin correspon in holes to said vent holes an arranged to c ose said vent holes, an inverted bell shaped deflector loosely encirclin 0 said feed pipe and extending through said direct discharge opening from the 0218111 and adjustably suspended from said hoo and means for pulverizing the rock withln said casing and coincidently creating a vacuum. a

- Signed at the city of Sherbrooke, Canada, this seventeenth day of October 1910.

ALFRED GODFREY CAMPBELL.

Witnesses: j I

ALEXINA JONCAS, G. W. BERLERS. 

